I need some quick questions answered...

jedrattle,
Try and get as much as they will let you grab. Get the engine and trans computer, all the wiring under the hood, power distribution box under the hood, wiring to fuel pump and fuel pump if they will let you have it. Gas pedal and wiring. If the truck has a security key then grab the key, column and wiring. Also get the OBD port and wires under the dash. You can always sort what you don't need later but the more you get the easire it will be to get it running.